Water-proof joint for metal roofing



(No Model.)

L. L. SAGENDORPH. WATER PROOF JOINT FOR METAL ROOFING.

No. 426,627. Patented Apr. 29, 1890.

UNITED STATES PATENT OFFICE.

LONGLEY LEIVIS SAGENDORPI'I, OF PHILADELPHIA, PENNSYLVANIA, AS-

SIGNOR OF ONE-HALF TO CHARLES N. HARDER, OF PHILMONT, NEW

YORK.

SPECIFICATION forming part of Letters Patent hTo. 426,627, dated April 29, 1890.

Application filed February 6, 1890. Serial No. 339,483, (No model.)

T0 on whom it may concern.-

Be it known that I, LONGLEY Lnwrs SAGEN- DORPH, a citizen of the United States, residing at- Philadelphia, in the county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Tater- Proof Joints for Metal Roofing, of which the following is a specification, reference being had to the accompanying drawings.

The primary object of my invention is to so construct or form the standing-seam joint between the metallic roofing-plates as that the same will be perfectly water-tight, in order that such a roof may be applied to a comparatively fiat surface, as will more fully hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of the end portion of a separable cap as preferably constructed before the plastic cement is put to place, and Fig. 2 is a similar view showing the plastic cement in place ready for application to the side flanges of the roofing-plates. Fig. 3 is a perspective view of the end portion of a standing seam complete constructed according to my invention, the different parts, however, not being shown compressed as tight as in actual use in order to better illustrate my invention. Figs. 4 and 5 illustrate the old method of forming standing seams. Figs. 6 and 7 are cross-sections taken between the cleats, showing the application of my invention when the seam-cap is formed on one side of the roofing-sheet and Fig. Sis a cross-see tion taken through one of the anchor-cleats.

My invention, while designed more especially for use in connection with vertical standing seams, may be advantageously employed and may be used to render horizontal joints or seams water-tight, and is constructed and applied as follows:

The seam-cap A, whether made separate from or in connection with one side of the roofing plate, is preferably made as shown-- that is, partially tubular at its top portion a, in which any suitable plastic cement b is placed before placing the cap over the side flange or flanges of the roofing sheet. The roofing-sheets 1) (when. the seam-cap A is separable) are formed with the vertical side flanges d, the cap A fitting over said flanges, as shown in Fig. 3. Then the cap is formed on one sideof the roofing-sheet, said cap overlaps the side flange cl of the adjacent sheet, as shown in Figs. 7'and 8. The roofing-sheets and cap are held to place by a suitable cleat E, nailed to the sheeting, as shown, and bent down overone flange d and then up and over the cap, as shown in Figs. 3 and 8.

The plastic cement b may be placed in the tubular top portion a of the seam-cap A before shipment, if desired, or after having arrived at its destination and just before being applied, the cement being of such a nature that it will not readily harden until spread out thin and exposed to the elements. Thecement preferably employed in this connection is what is known as silicate gum cement.

My invention is applied as follows: Having secured the cap over the side flange or flan ges of the roofing-sheets and having secured the overlapping cleats to place, said cap, cleats, and flanges are tightly compressed with suitable tongs, which operation causes the surplus cement in its plastic form to run down and spread itself in between said flanges and the inner face of the cap, in which position it will readily harden, and thus render the seam perfectly water-tight.

The advantages of my. improvement are many. am able to dispense with the double seaming of the roofing-flange, as shown at d in Fig. 5, which is essential in the old construction. The plastic cement will answer all purposes of solder and is much more secure in case of fire. The caps, when made separate from or in connection with the rooting-sheet, will admit of the plastic cement being shipped with the roofing ready for application. The standing seamed roof, when provided with the water-proof cement, may be applied to a comparatively flat surfacea feature not heretofore attained, as the water in case of a hard rain or melting snow would enterbetween the flanges and cap and cause the roof to leak What I claim as new, and desire to secure by Letters Patent, is

By using the plastic-cement filling I a 1. As anew article of manufacture, aseainb is placed, said cap overlapping the side IO cap A, having its top portion a of a tubular flange of the roofing-sheet and held to place shape, said tubular portion being filled with by a suitable cleat nailed to the sheeting and plastic cement, as and for the purposes set overlapping the side flange of the plate and 5 forth. cap, substantially as set forth.

'2. The Water-proof joint for metal plates LONGLEY LEWIS SAGENDORPH. herein shown and described, consisting of a Witnesses: cap A, having along its inverted portion the E. P. HOYT,

tubular bend a, in which the plastic cement P. D. SHELMIRE. 

